How to prevent caching of my Javascript file? [duplicate]
Add a random query string to the src
You could either do this manually by incrementing the querystring each time you make a change:
<script src="test.js?version=1"></script>
Or if you are using a server side language, you could automatically generate this:
ASP.NET:
<script src="test.js?rndstr=<%= getRandomStr() %>"></script>
More info on cache-busting can be found here:
https://curtistimson.co.uk/post/front-end-dev/what-is-cache-busting/
<script src="test.js?random=<?php echo uniqid(); ?>"></script>
EDIT: Or you could use the file modification time so that it's cached on the client.
<script src="test.js?random=<?php echo filemtime('test.js'); ?>"></script>
Configure your webserver to send caching control HTTP headers for the script.
Fake headers in the HTML documents:
- Aren't as well supported as real HTTP headers
- Apply to the HTML document, not to resources that it links to